Dimethylformamide → 6-bromo-4-(2,4-dimethoxy-benzyl)-4H-pyrido[3,2-b][1,4]oxazin-3-one

Reaction equation

[Br:1][c:2]1[cH:3][cH:4][c:5]2[c:10]([n:11]1)[NH:9][C:8](=[O:12])[CH2:7][O:6]2.[C:25](=[O:26])([O-:27])[O-:28].[CH3:13][O:14][c:15]1[c:16]([CH2:17][Cl:18])[cH:19][cH:20][c:21]([O:23][CH3:24])[cH:22]1.[Cs+:29].[Cs+:30].[O:31]=[CH:32][N:33]([CH3:34])[CH3:35]>>[Br:1][c:2]1[cH:3][cH:4][c:5]2[c:10]([n:11]1)[N:9]([CH2:17][c:16]1[c:15]([O:14][CH3:13])[cH:22][c:21]([O:23][CH3:24])[cH:20][cH:19]1)[C:8](=[O:12])[CH2:7][O:6]2